Tampa titan holds the majority of his fortune in an asset class that usually holds value in a recession: sports teams. Owns pro football's Tampa Bay Buccaneers, English soccer giant Manchester United. Man U won English Premier League in 2009, but massive debt load continues to rankle fans, hamper profitability despite rising revenues. Inherited watch-parts business from father at 15; expanded family empire into shopping malls, sports teams. Shopping: Today owns 6.7 million square feet of retail space. Glazer Children's Museum slated to open in Tampa later this year. Sons manage family assets.